.heroes-content{
  display: flex;
  justify-content: space-between;
  align-items: centerl
}
.logo{
  display: block;
  width: 80px;
  margin: 0 atuo;
}
nav a {
  padding: 5px 10px;
  text-decoration: none;
  margin-top: 10px;
  display: inline-block;
  background-color: #eee;
  border-radius: 4px;
}
nav a:visited, a:link {
  color: #607D8B;
}
nav a:hover {
  color: #039be5;
  background-color: #CFD8DC;
}
nav a.active {
  color: #039be5;
}